CentOS and RHEL 7: Install Linux, Apache, MariaDB, PHP (LAMP)

More about LAMP

LAMP is nothing but a software bundle or a platform consisting of Linux operating system, Apache web-server, MySQL database server and PHP (or Perl/Python)scripting language. The LAMP stack is used for building heavy-duty dynamic web sites entirely out of free and open-source software. In this tutorial, I’m going to explain how to Linux, Apache, MySQL/MariaDB (drop in replacement for MySQL), PHP (LAMP) stack On CentOS 7 or RHEL 7.

Assumptions

  • I’m assuming that you’ve installed basic RHEL 7 or CentOS 7 server. Open the Terminal app and type the following command as root user.
  • You must be familiar with the yum command
  • You must know your Server’s IP address. Use the following command to find your server’s ip address for eth0 interface:ifconfig eth0
    OR
    ip a show eth0
    OR
    ip addr list eth0 | awk '/inet /{sub(/\/[0-9]+/,"",$2); print $2}'
    OR
    ifconfig eth0 | awk '/inet /{print $2}'
    10.41.143.156
  • I’m going to use IP address 10.41.143.156 for testing purpose. Feel free to replace this IP address with your actual private or public IP address.

Enough talk, let’s set up LAMP stack.

Step #1: Install Apache on a CentOS 7 / RHEL 7 server

Type the following yum command to install Apache web-server:
sudo yum install httpd
Sample outputs:

Enable the httpd service at boot time

To make sure the httpd service start automatically at the boot time, enter:
sudo systemctl enable httpd.service
Sample outputs:

The following command will disable the httpd service at the boot time:
sudo systemctl disable httpd.service
Sample outputs:

Start the httpd service on a CentOS/RHEL v7.x

sudo systemctl start httpd.service

 

Stop the httpd service on a CentOS/RHEL v7.x

sudo systemctl stop httpd.service

Restart the httpd service on a CentOS/RHEL v7.x

sudo systemctl restart httpd.service

Finding the httpd service status on a CentOS/RHEL v7.x

To verify that the httpd service is running, enter:
systemctl is-active httpd.service
Sample outputs:

Gracefully restart the httpd service on a CentOS/RHEL v7.x

sudo apachectl graceful

Test httpd/Apache configuration file for errors on a CentOS/RHEL v7.x

sudo apachectl configtest
Sample outputs:

httpd service default configuration

  1. Default config file: /etc/httpd/conf/httpd.conf
  2. Configuration files which load modules : /etc/httpd/conf.modules.d/ directory (e.g. PHP)
  3. Select MPMs (Processing Model) as loadable modules [worker, prefork (default)] and event: /etc/httpd/conf.modules.d/00-mpm.conf
  4. Default ports: 80 and 443 (SSL)
  5. Default log files: /var/log/httpd/{access_log,error_log}

Step #2: Install MariaDB on a CentOS 7 / RHEL 7 server

MariaDB An enhanced, drop-in replacement for MySQL server. RHEL/CentOS v7.x shifts from MySQL to MariaDB for its database management system needs. Type the following yum command to install MariaDB server:
sudo yum install mariadb-server mariadb
To start mariadb, type:
sudo systemctl start mariadb.service
To make sure the mariadb service start automatically at the boot time, enter:
sudo systemctl enable mariadb.service
Sample outputs:

To stop/restart and disable mariadb service use the following commands:

Securing MariaDB

Type the following command:
sudo /usr/bin/mysql_secure_installation
Sample outputs:

Test MariaDB installation

Type the following command
mysql -u root -p

 

Step #3: Install PHP on a CentOS/RHEL v7.x

To install PHP and modules such as gd/msyql type the following yum command:
sudo yum install php php-mysql php-gd php-pear
You must restart the httpd (Apache) service, enter:
sudo systemctl restart httpd.service
To search all other php modules, type:
sudo yum search php-
Sample outputs:

To find more info about a module type:
sudo yum info php-pgsql
To install php module called php-pgsql type:
sudo yum install php-pgsql

Test PHP on your server

Create a file called /var/www/html/test.php as follows:
sudo vi /var/www/html/test.php
Append the following code:

Save and close the file. Point your web-browser to your server’s IP address such as http://10.0.0.16/test.php